Apparatus for embossing cans



Nov. 4, 1930. w. H. HAUPT 1,780,890

APPARATUS FOR EMBOSSING CANS Filed April- 22 1930 2 SheetsSheet 1 LYkEZVTOR Wrmm'm' BY I Nov. 4, 1930. w. H. HAUPT 1,780,890

APPARATUS FOR EMBOSSING CANS Filed April 22 1930 2 Sheets-Sheet 2 V 0R g -3 BY h/Mfz, 7% Fl;

N A ORNEY Patented Nov. 4, 1930 smrss WALTER H. HAUIT, OF LUIDLOW, KENTUCKY, ASSIGNOR TO AUGUSTINE DAVIS, JR, OF 1 CINCINNATI, OHIO APPARATUS: FOR EMBOSSING CANS Application filed. April 22,

that these cans have a narrow neck and it is impossible to exert the pressure required for embossing a name or trade-mark on the side of the can in an ordinary press, because one can not reach through the neck with a member suficiently strong.

Instead of attempting to transmit a tremendous force, say 60,000 lbs. or more, through the neck of the can to the dies, the solution presented in this invention is to apply the required force gradually by a succession of blows from a long stroke air hammer or other pounding means. Use is made of a ram made up as the arc of a circle. The upper end of this ram carries or is related to an inner embossing die, and its outer end is acted upon by the hammer. The ram floats or moves freely in a curved horn, which can be readily passed through the mouth of the can, or rather the can can be tilted on and 0E over the horn. Means are providedfor holding the can while being embossed, and for enabling the can to be loaded on and unloaded from the machine and for positioning it and the horn, ram and inner die with respect to the outer die and the hammer.

In the accompanying drawings forming part hereof:

Fig. 1 is a vertical longitudinal section through a preferred embodiment of the machine and a can in place to be embossed; and

Fig. 2 is a sectional plan view.

The machine or device has a base 2, on which is mounted a block 3. The can C is inverted on top of this block, where its neck may be caught in a rim 4. Ayoke 5 rising from the base carries a clamp screw 6 to bear on the outside of the bottom of the can, and this screw is swiveled on a transverse axis so that it can be swung out of the Way, as indicated in broken lines in Fig. 1, when a can is to be introduced or taken away.

A circularly curved horn 7 is fixed to the block 3, thence extendin upward and backward. Guided in this orn is a similarly curved ram 8, carrying at its upper end an 1980. Serial No. 446,259.

embossing die 9. This die need not necessarily, however, be attached to the ram itself, as long as 1t is properly supported to receive the force of the blows and apply them to the inner surface of the side wall of the can.

Rigid uprights 10 rising from the base in front of the block 3 are united by ahead 11, constituting a die-holder to which the external die 12is applied in a suitable manner such as that s own.

The hammer mechanism preferably conslsts of a pneumatic hammer or gun 13, which may be supported on the base or on a separate support. The hammer may be held against the ram by a spring 14 connected to the main frame of the machine. 15 is a lever on the machine frame connected by a link 16 with the crank 17 of the control valve of the hammer.

The horncarrying and can receiving block 3 is swiveled on the base, the swivel connection 18 being eccentric to the projection of the can seat, so that the block horn, ram, and can clamping means can be shifted a distanceof about 90 or more from the embossing position, to a position where the cans can be put onand taken off over the horn, ram and inner die. The block is locked in the embossing position by a nut 19 and a locking pin 20 releasable by a cam lever 21, or by other suitable means.

The operation of embossing the can will be clear without further description. As previously stated, the plan is to efl'ect the embossing by a succession of moderate blows transmitted through the narrow opening of the can by means of a circularly curved ram and horn, instead of attempting to obtain the result by heavy pressure.

While a preferred and simple embodiment of the invention has been described in detail, it will be understood that various changes may be made without departing from the scope of the invention covered by the claims.

I claim:

1. Can embossing means, comprising the combination of can receiving means, an outer die holder, a curved horn to enter through the mouth of a can, a curved ram guided in ram, guided in said horn, through which to said horn, and an embossing die at the inner end of said ram.

2. Can embossing means, comprising the combination of can receiving means, an outer die holder, a curved horn to enter through the mouth of a can, a curved ram guided in said horn, an embossing dieat the inner end of said ram, and hammer mechanism for applying a succession of blows to the outer end of said ram;

3. Can embossing means, comprising a base, a block carrying a curved horn adapted to pass through the mouth of a can, a curved transmit a succession of blows, an embossing die, an external die holder, and means securing said block to said base and enabling said block to be moved to a loading and unloading position.

A. Can embossing means, comprising a base, a block carrying a curved horn to pass through the mouth of a can, a curved ram, guided in said horn, through which to transmit a succession of blows to an embossing die, an external die holder, and means for clamping a can to said block.

5. Can embossing means, comprising a base, a block carrying a curved horn to pass through the mouth of a can, a curved ram, guided in said horn, through which to transmit a succession of blows to an embossing die, an external die holder, means for clamping a can to said block, and means securing said block to said base and enabling said block to be moved to a loading and unloading position.

6. Can embossing means comprising a curved horn to enter through the mouth of the can, and a curved ram guided in said horn and adapted to transmit a succession of blows to an embossing die inside the can.

7. Can embossing means comprising a curved horn to enter through the mouth of the can, a curved ram guided in said horn and adapted to transmit a succession of blows to an embossing die inside the can, and hammer mechanism for applying a succession of blows to the outer end of said ram.

WALTER H. HAUPT. 

